ST7FMC1K2B3 STMICROELECTRONICS [STMicroelectronics], ST7FMC1K2B3 Datasheet - Page 234
ST7FMC1K2B3
Manufacturer Part Number
ST7FMC1K2B3
Description
Manufacturer
STMICROELECTRONICS [STMicroelectronics]
Datasheet
1.ST7FMC1K2B3.pdf
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ST7MC1xx/ST7MC2xx
OP-AMP MODULE (Cont’d)
10.7.5 Op-Amp Programming
The flowchart for Op-Amp operation is shown in
Figure 126
Figure 126. Normal Op-Amp Operation
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(4)
Write OACSR = x0p1 pxx0
p : same as before
Yes
#OFFCMP & AVGCMP
should be set simultenaously
(2a)
Write OACSR = x111 0xx0
Wait for 24576*TCPU cycles
Read CMPOVR = 1
Re-compensate
Offset ?
(1)
No
Yes
closed loop gain > 20dB @ 100kHz ?
Write OACSR = x0010xx0
Wait for Amplifier to wake up (T
Average Compensation ?
Compensation Offset ?
Power On Reset
OACSR = 0000 0000
Op-Amp useable
Need
Yes
No
#The HIGHGAIN bit can also be written in step (1) or (2)
(2b)
Write OACSR = x101 0xx0
Wait for 1536*TCPU cycles
Read CMPOVR = 1
wakeup
Write OACSR = x1p1 1xx0
p : same as before
External components always connected
No
No
)
Yes
(3) #
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